Plate II. 



Fig. i. Echimts acuttts, var. Flemingii. 



2. var. norvegicus, large specimen. 



3 5. Strongylocentrottis dr0bachiensis. 



6. Echinus acutus, var. norvegicus, small specimen. 



7. Parechinus miliaris (on the plate wrongly called Psammec/u'nus 



8. Echimts acutus, var. mediterranea. 



